COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Thermodynamic capacity of quantum processes

## Thermodynamic capacity of quantum processesAdd to your list(s) Download to your calendar using vCal - Philippe Faist (CALTECH (California Institute of Technology))
- Tuesday 24 July 2018, 11:00-11:45
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact info@newton.ac.uk. MQIW05 - Beyond I.I.D. in information theory Thermodynamics imposes restrictions on what state transformations are possible. In the macroscopic limit of asymptotically many independent copies of a state—as for instance in the case of an ideal gas—the possible transformations become reversible and are fully characterized by the free energy. Here, we present a thermodynamic resource theory for quantum processes that also becomes reversible in the macroscopic limit. Namely, we identify a unique single-letter and additive quantity, the thermodynamic capacity, that characterizes the “thermodynamic value” of a quantum channel. As a consequence the work required to simulate many repetitions of a quantum process employing many repetitions of another quantum process becomes equal to the difference of the respective thermodynamic capacities. For our proof, we construct an explicit universal implementation of any quantum process using Gibbs-preserving maps and a battery, requiring an amount of work asymptotically equal to the thermodynamic capacity. This implementation is also possible with thermal operations in the case of time-covariant quantum processes or when restricting to independent and identical inputs. In our derivations we make extensive use of Schur-Weyl duality and information-theoretic routines, leading to a generalized notion of quantum typical subspaces. [joint work with Mario Berta and Fernando Brandão] This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
- Featured lists
- INI info aggregator
- Isaac Newton Institute Seminar Series
- School of Physical Sciences
- Seminar Room 1, Newton Institute
- bld31
Note that ex-directory lists are not shown. |
## Other listsEuropean Research Seminar Series 2014-2015 Pilot waves, Bohmian metaphysics, and the foundations of quantum mechanics ji247's list## Other talksConformal loop ensembles on Liouville quantum gravity 2 Combating a hydra: Islamic State's digital jihad as a threat to international security TBC Seminars by the candidates for the lectureship in High Energy Physics (fixed term) Trust & Technology Initiative Launch |